feat: initialize Phoenix application for weather alerts

This commit sets up the initial Silmataivas project structure, including: Phoenix web framework configuration, database models for users and locations, weather polling service, notification system, Docker and deployment configurations, CI/CD pipeline setup

1 files changed, 35 insertions, 0 deletions

diff --git a/lib/silmataivas/ntfy_notifier.ex b/lib/silmataivas/ntfy_notifier.ex
new file mode 100644
index 0000000..26815db
--- /dev/null
+++ b/lib/silmataivas/ntfy_notifier.ex
@@ -0,0 +1,35 @@
+defmodule Silmataivas.Notifications.NtfyNotifier do
+  @moduledoc """
+  Sends push notifications using ntfy.sh.
+  """
+
+  @ntfy_url System.get_env("NTFY_URL") || "https://ntfy.sh"
+
+  def send_alert(
+        topic,
+        %{
+          "main" => %{"temp" => temp},
+          "wind" => %{"speed" => speed},
+          "dt_txt" => time_str
+        } = entry
+      ) do
+    rain_mm = get_in(entry, ["rain", "3h"]) || 0.0
+    wind_kmh = speed * 3.6
+
+    message = """
+    🚨 Weather alert for your location (#{time_str}):
+
+    🌬️ Wind: #{Float.round(wind_kmh, 1)} km/h
+    🌧️ Rain: #{rain_mm} mm
+    🌡️ Temperature: #{temp} °C
+
+    Stay safe,
+    — Silmätaivas
+    """
+
+    Req.post("#{@ntfy_url}/#{topic}",
+      headers: [{"Priority", "5"}],
+      body: message
+    )
+  end
+end